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Norma-Jean [14]
2 years ago
12

Factorise completely a). 3xy - 9x b). x² - 4 c). 2x² + 5y + 1​

Mathematics
1 answer:
Keith_Richards [23]2 years ago
8 0

Answer:

a) 3x(y-3)

b) (x-2)(X+2)

Step-by-step explanation:

See the steps below:) You can also use the app photo math, you take a picture and it will give you the answer and explain the steps:)

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The equation below represents the trend line of a scatter plot showing the hours spent studying versus science test scores.
navik [9.2K]

Answer:

On the science test  the point  ( 0 , 424 ) the intercepts is bigger

Step-by-step explanation:

The relation hours spend vs science test score is

y  =  6.5*x  + 424

And the relation hours spend vs Maths test score is

y  =  7.2*x   + 34.7

Making   x =  0  ( student does not study at all ) we get:

For science score test woul be

y  =  0  + 424

In case of maths

y  =  0  + 34.7

That mean student without studying will get better score in science.

The point  ( 0 , 424)   ( science ) represents the interception with y axis

in Maths case such point is  ( 0 . 34.7)

7 0
3 years ago
Read 2 more answers
An ant can travel at a constant speed of 980 inches every 5 minutes. At this rate, how far can the ant travel in 7 minutes? *
Luda [366]
Answer: 1,372
Reasoning:
980 divided by 5 = 196
196 times 7 = 1,372
5 0
2 years ago
What is the number in scientific notation ? <br><br> 0.000000000093
yaroslaw [1]
0.000000000093 in scientific notation is 9.3 x 10 ^ -11
4 0
3 years ago
Read 2 more answers
3x+5y=27.50 &amp; 6x+3y=27<br><br>I love you ​
zvonat [6]

Answer:

what do u want me to do withthis question

can u edit then I’ll edit

Step-by-step explanation:

3 0
3 years ago
Find the area of this circle. Use 3.14 for . A circle has diameter 62 feet. 62 ft
EastWind [94]

Answer:

3017.54

Step-by-step explanation:

Volume for area of circle is A = Pie ( Or in this case 3.14 ) * radius ^ 2

Plug in the numbers 3.14 * 31 ^2

31 is half the diameter or the radius

Answer = 3017.54

4 0
3 years ago
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